diff --git a/contrib/jenkins-osmo-bts-octphy.sh b/contrib/jenkins-osmo-bts-octphy.sh
index a4a57e4..4045948 100755
--- a/contrib/jenkins-osmo-bts-octphy.sh
+++ b/contrib/jenkins-osmo-bts-octphy.sh
@@ -61,6 +61,10 @@
 done
 
 # build the archive that is going to be copied to the tester
-rm "$base"/*.tgz || true
+rm "$base"/*.tgz "$base"/*.md5 || true
 cd "$prefix"
-tar czf "$base/osmo-bts-octphy.build-${BUILD_NUMBER}.tgz" *
+this="osmo-bts-octphy.build-${BUILD_NUMBER}"
+tar="${this}.tgz"
+tar czf "$base/$tar" *
+cd "$base"
+md5sum "$tar" > "${this}.md5"
diff --git a/contrib/jenkins-osmo-bts-sysmo.sh b/contrib/jenkins-osmo-bts-sysmo.sh
index 5e6c9d9..f321b8c 100755
--- a/contrib/jenkins-osmo-bts-sysmo.sh
+++ b/contrib/jenkins-osmo-bts-sysmo.sh
@@ -65,6 +65,10 @@
 done
 
 # build the archive that is going to be copied to the tester and then to the BTS
-rm "$base"/*.tgz || true
+rm "$base"/*.tgz "$base"/*.md5 || true
 cd "$prefix_real"
-tar cvzf "$base/osmo-bts-sysmo.build-${BUILD_NUMBER}.tgz" *
+this="osmo-bts-sysmo.build-${BUILD_NUMBER}"
+tar="${this}.tgz"
+tar czf "$base/$tar" *
+cd "$base"
+md5sum "$tar" > "${this}.md5"
diff --git a/contrib/jenkins-osmo-bts-trx.sh b/contrib/jenkins-osmo-bts-trx.sh
index fb49a75..652913f 100755
--- a/contrib/jenkins-osmo-bts-trx.sh
+++ b/contrib/jenkins-osmo-bts-trx.sh
@@ -60,6 +60,10 @@
 done
 
 # build the archive that is going to be copied to the tester
-rm "$base"/*.tgz || true
+rm "$base"/*.tgz "$base"/*.md5 || true
 cd "$prefix"
-tar czf "$base/osmo-bts-trx.build-${BUILD_NUMBER}.tgz" *
+this="osmo-bts-trx.build-${BUILD_NUMBER}"
+tar="${this}.tgz"
+tar czf "$base/$tar" *
+cd "$base"
+md5sum "$tar" > "${this}.md5"
diff --git a/contrib/jenkins-osmo-nitb.sh b/contrib/jenkins-osmo-nitb.sh
index 61d6e2f..6a2420b 100755
--- a/contrib/jenkins-osmo-nitb.sh
+++ b/contrib/jenkins-osmo-nitb.sh
@@ -60,6 +60,10 @@
 done
 
 # build the archive that is going to be copied to the tester
-rm "$base"/*.tgz || true
+rm "$base"/*.tgz "$base"/*.md5 || true
 cd "$prefix"
-tar czf "$base/osmo-nitb.build-${BUILD_NUMBER}.tgz" *
+this="osmo-nitb.build-${BUILD_NUMBER}"
+tar="${this}.tgz"
+tar czf "$base/$tar" *
+cd "$base"
+md5sum "$tar" > "${this}.md5"
diff --git a/contrib/jenkins-run.sh b/contrib/jenkins-run.sh
index 7d796b5..87d29bf 100755
--- a/contrib/jenkins-run.sh
+++ b/contrib/jenkins-run.sh
@@ -1,37 +1,25 @@
 #!/bin/sh
 set -e -x
 
-if [ -z "$OSMO_GSM_TESTER_REMOTE_MAIN_UNIT" ]; then
-  echo "To run the tests from jenkins, a main unit host must be defined."
-  echo "e.g. OSMO_GSM_TESTER_REMOTE_MAIN_UNIT=\"user@10.9.8.7\""
-fi
+# remove older trial dirs and *-run.tgz, if any
+trial_dir_prefix="trial-"
+rm -rf "$trial_dir_prefix"* || true
 
-osmo_gsm_tester_host="$OSMO_GSM_TESTER_REMOTE_MAIN_UNIT"
-osmo_gsm_tester_src="${OSMO_GSM_TESTER_REMOTE_SRC:-/usr/local/src/osmo-gsm-tester}"
-osmo_gsm_tester_dir="/var/tmp/osmo-gsm-tester/trials"
-tmp_dir="/var/tmp/osmo-gsm-tester/.prep-trials"
+# Expecting *.tgz artifacts to be copied to this workspace from the various
+# jenkins-*.sh runs, via jenkins job configuration. Compose a trial dir:
+trial_dir="${trial_dir_prefix}$BUILD_NUMBER"
+mkdir -p "$trial_dir"
 
-#trial_name="$NODE_NAME-$BUILD_TAG"
-trial_name="trial-$BUILD_NUMBER"
-local_trial_base="./compose_trial"
-local_trial_dir="$local_trial_base/$trial_name"
+mv *.tgz "$trial_dir"
+cat *.md5 >> "$trial_dir/checksums.md5"
+rm *.md5
 
-rm -rf "$local_trial_base" || true
-mkdir -p "$local_trial_dir"
+# OSMO_GSM_TESTER_OPTS is a way to pass in e.g. logging preferences from the
+# jenkins build job.
+python3 -u "$(which osmo-gsm-tester.py)" "$trial_dir" $OSMO_GSM_TESTER_OPTS
 
-# Add archives from other jenkins builds.
-# This jenkins job must be configured to copy *.tgz artifacts to the
-# workspace from the various jenkins*bts*.sh runs.
-mv $WORKSPACE/*.tgz "$local_trial_dir"
-cd "$local_trial_dir"
-md5sum *.tgz > checksums.md5
-cd -
+# no need to keep extracted binaries
+rm -rf "$trial_dir/inst" || true
 
-ssh "$osmo_gsm_tester_host" "$osmo_gsm_tester_src/contrib/trials-cleanup.sh"
-
-ssh "$osmo_gsm_tester_host" "mkdir -p $tmp_dir"
-scp -r "$local_trial_dir" $osmo_gsm_tester_host:$tmp_dir/
-ssh "$osmo_gsm_tester_host" "mv $tmp_dir/$trial_name $osmo_gsm_tester_dir"
-trial_dir="$osmo_gsm_tester_dir/$trial_name"
-
-ssh "$osmo_gsm_tester_host" "python3 -u $osmo_gsm_tester_src/src/osmo-gsm-tester.py $trial_dir -T $OSMO_GSM_TESTER_OPTS"
+# tar up all results for archiving (optional)
+tar czf "$trial_dir"-run.tgz "$trial_dir"